Re: [bwm-tools-tech] Bandwidth monitor

[Kobe L. <ko...@pu...>]

You are party right.

The point of bwm_tool is that you first categorize your traffic any way 
IPtables let you do, so you can divide FTP from HTTP and put P2P traffic 
  aside in it's own class, you can also categorize on source IP. This is 
handy if your clients have fixed Ip's (or ranges of IP's).

After you made your categories you assign each ons of them:
- a priority
- a maximum bandwith usage
- a burst bandwith rate

After that the deamon tries to enforce this limits.

Solving your specific problem can be accomplished rather simple.
If you assign each and every IP you have in your subnet (10 as you 
state) a maximum rate of, let's say 750 kbit, wich is a nice and 
comfortable speed, and you limit your entire subnet to 900 kbit so your 
connection will never be 100% used.
If you then prioritize (via QOS or bwm, or both) the tcp-ACK packets 
your problem will be solved, even without theze prioritizion you will 
noticy a significant performance improvement.

If the per-IP thing is not an option (dynamic ip's, many travveling 
pc's, ...), just assign the 900 kbit to the whole subnet.

The reason of the 'slowness' is that your router/uplink is that it's 
overloaded with data that even the TCP-ACK packets aren't getting true, 
and thus effective creating a bottleneck.

With this setup the tcp-ACK packets have sufficent room to always pass 
quick via your uplink.

Greetz
Kobe (who is NOT the author, just a fan)

Martyn Boswell - Langtoft.net wrote:

> Hello, I have been trawling the internet for a linux based Bandwidth 
> management system that we could implement into our community broadband 
> network. I came across your software through soundforge via google, am I 
> right in thinking the software dynamically manages traffic or does it 
> limit traffic to individual users?
> 
>  
> 
> Our problem is we have a 1MB satellite link shared between 10 people 
> when everyone is surfing webpages it is fine but when someone starts a 
> download the whole system becomes so slow! We basically want something 
> that gives priority to webpage requests over downloading but when users 
> are not web browsing it stops limiting the bandwidth.
> 
>  
> 
> That’s kind of it in a nutshell I would be ever grateful if you could 
> reply back asap
> 
>  
> 
> Thank You!
> 
>  
> 
> Regards
> 
>  
> 
> **Martyn** @ Langtoft.net
> 
>  
> 
> e-mail :: ma...@la... <mailto:ma...@la...>
> 
> phone :: 01377 267 426
> 
> fax :: 01377 267 477
> 
> web :: www.langtoft.net <http://www.langtoft.net>
> 
>  
>